IRL8114PBF N-Channel 30V 90A MOSFET Equivalent & Substitute Parts

Part Overview

The IRL8114PBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 30V drain-to-source voltage and 90A continuous drain current in a TO-220AB through-hole package. This device is classified as Obsolete product status. Due to its obsolescence, identification of functionally equivalent substitute components is necessary for ongoing design support, production continuity, and system maintenance applications.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	90	A
Rds On (Max) @ 40A, 10V	4.5	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2.25	V
Gate Charge (Qg) @ 4.5V	29	nC
Power Dissipation (Max)	115	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-220-3	—

Substitute Part Grouping Explanation

Substitution of the IRL8114PBF is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Drain-to-Source Voltage (Vdss) must equal or exceed 30V
Continuous Drain Current (Id) must meet or exceed 90A at 25°C
Gate threshold voltage (Vgs(th)) must be compatible with existing drive circuitry
On-state resistance (Rds On) must not significantly degrade circuit performance
Gate charge (Qg) affects switching speed and driver requirements
Power dissipation capability must support thermal design

Mechanical Compatibility Criteria:

Package type must be TO-220-3 (through-hole mounting)
Pin configuration must match existing PCB layouts
Operating temperature range must span -55°C to 175°C

The substitute part IPP042N03LGXKSA1 shares the same voltage rating (30V) and package type (TO-220-3), but operates at a reduced continuous drain current of 70A, making it suitable only for applications where the 90A rating is not required.

Parameter Comparison

Parameter	IRL8114PBF	IPP042N03LGXKSA1	Unit
Manufacturer	Infineon Technologies	Infineon Technologies	—
FET Type	N-Channel	N-Channel	—
Drain to Source Voltage (Vdss)	30	30	V
Continuous Drain Current (Id) @ 25°C	90	70	A
Rds On (Max) @ 10V	4.5 @ 40A	4.2 @ 30A	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2.25	2.2	V
Gate Charge (Qg) @ Vgs	29 @ 4.5V	38 @ 10V	nC
Power Dissipation (Max)	115	79	W
Operating Temperature Range	-55 to 175	-55 to 175	°C
Package Type	TO-220-3	TO-220-3	—
Product Status	Obsolete	Not For New Designs	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

For Direct Substitution (Current Capacity Critical):

The IRL8114PBF operates at 90A continuous drain current. The IPP042N03LGXKSA1 substitute is rated for 70A continuous drain current. Direct substitution is not appropriate for applications requiring the full 90A rating. The 20A reduction in current capacity represents a 22% decrease in maximum continuous current handling.

For Reduced-Current Applications:

The IPP042N03LGXKSA1 is suitable for applications where continuous drain current does not exceed 70A. Both devices share identical voltage ratings (30V Vdss), compatible gate threshold voltages, and matching operating temperature ranges (-55°C to 175°C). Both are ROHS3 compliant and manufactured by Infineon Technologies.

Compliance Considerations:

Both the IRL8114PBF and IPP042N03LGXKSA1 meet ROHS3 compliance requirements, are REACH unaffected, and carry EAR99 ECCN classification. Moisture sensitivity level is 1 (Unlimited) for both devices, indicating no special moisture handling requirements during storage or assembly.

Product Status Impact:

The IRL8114PBF is classified as Obsolete, indicating no further manufacturing or support. The IPP042N03LGXKSA1 is classified as Not For New Designs, indicating limited availability and no recommended use in new product development. Both statuses necessitate careful inventory planning and long-term supply chain assessment.

Frequently Asked Questions (FAQ)

Q: Can IPP042N03LGXKSA1 directly replace IRL8114PBF in all applications?

A: No. The IPP042N03LGXKSA1 is rated for 70A continuous drain current, while the IRL8114PBF is rated for 90A. Direct substitution is only valid for applications where the maximum continuous drain current requirement does not exceed 70A. Applications requiring the full 90A rating cannot use this substitute.

Q: Are the package types identical?

A: Yes. Both devices use the TO-220-3 through-hole package. PCB layouts and mounting hardware are compatible. Pin configuration matches between the two devices.

Q: What is the difference in gate charge between these devices?

A: The IRL8114PBF has a gate charge of 29 nC at 4.5V, while the IPP042N03LGXKSA1 has 38 nC at 10V. The higher gate charge in the substitute may require adjustment to gate driver timing and current capacity in the application circuit.

Q: Are both devices suitable for new designs?

A: No. The IRL8114PBF is Obsolete. The IPP042N03LGXKSA1 is classified as Not For New Designs. Both devices are restricted from new product development. Alternative current-generation components should be evaluated for new designs.

Q: What is the on-state resistance difference?

A: The IRL8114PBF has Rds On of 4.5 mOhm at 40A and 10V. The IPP042N03LGXKSA1 has Rds On of 4.2 mOhm at 30A and 10V. The substitute exhibits lower on-state resistance at its rated current, but this advantage is offset by the reduced current capacity.

Q: Do both devices have the same operating temperature range?

A: Yes. Both the IRL8114PBF and IPP042N03LGXKSA1 operate across -55°C to 175°C junction temperature range, ensuring thermal compatibility in equivalent thermal environments.

Q: What is the power dissipation difference?

A: The IRL8114PBF is rated for 115W maximum power dissipation, while the IPP042N03LGXKSA1 is rated for 79W. The 36W reduction reflects the lower current rating of the substitute device.

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